Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1534
Title: Adaptive image noise filtering using transform domain local statistics
Authors: Choy, Steven S. O.
Chan, Yuk-hee
Siu, Wan-chi
Subjects: Image restoration
Image noise smoothing
Adaptive LMMSE estimation
Local statistics
Decorrelation
Issue Date: Aug-1998
Publisher: SPIE
Source: Optical engineering, Aug. 1998, v. 37, no. 8, p. 2290-2296.
Abstract: Image noise filtering has been widely perceived as an estimation problem in the spatial domain. In this paper, we deal with it as an estimation problem in an uncorrelated transform domain. This idea leads to a generalization of the adaptive LMMSE estimator for filtering noisy images. In our proposed method, the transform-domain local statistics obtained from the noisy image are exploited. Due to the fact that the transform-domain local statistics carry more information about the image than the spatial-domain local statistics do, improvement in noise filtering is gained overall and particularly significant in the vicinity of edges.
Rights: Copyright 1998 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/1534
DOI: 10.1117/1.601750
ISSN: 0091-3286
Appears in Collections:EE Journal/Magazine Articles

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